Mr Van der Bellen shared a message of support for the family from a Viennese Catholic charity, Caritas, which at the time of writing has over 35,000 likes.

“In the first hours of her life, this sweet girl was already the target of an unbelievable wave of violent, hateful online commentary,” Caritas’ Klaus Schwertner wrote on Facebook.

“It is a completely new dimension of online hate, targeting an innocent newborn.”

Austria has experienced a rise in anti-Muslim sentiment following the arrival of thousands of asylum seekers in the country fleeing conflict in Africa and the Middle East.

In 2017 the country’s far-right Freedom Party won 26% of the vote in the snap national election, resulting in the party becoming a coalition partner with the conservative People’s Party, which is led by Sebastian Kurz. Both parties made election promises to curb immigration.

Under the controversial agreement, which was made in December, the Freedom Party’s leader Heinz-Christian Strache became vice-chancellor while Mr Kurz was made chancellor.

Last week, Mr Strache caused outcry among liberal politicians in Austria after he called for refugees to be housed in army camps with night time curfews.

Austria is currently the only western European state with a far-right party in its government.